Bicycle handlebar



FIG. 1 is a top, rear, and left side perspective view of a bicycle handlebar showing my new design.

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a right side elevation view thereof, to which the left side elevation view is a mirror image.

The broken lines in the drawings illustrate portions of the bicycle handlebar that form no part of the claimed design. 

CLAIM The ornamental design for a bicycle handlebar, as shown and described. 